Here’s a nifty little tool to quickly calculate your new, scaled down aspect ratio when resizing photos. There is a calculator built into the image editor in WordPress, but sometimes I just want to know the answer without opening Photoshop or logging in to WordPress.

Aspect Ratio Calculator

screenshot_photo_resizeAnother quick resize method on a Mac: open your photo in Preview and go to Tools. You can resize, scale, crop, rename and save your image right there.